bash script - return full path and filename - Page 2

rainbowbird · 06-22-2009, 04:27 AM

Quote:

Originally Posted by Disillusionist

Code:

source="./tmp/myfile"
dest=~/.Waste/$(echo $source|sed "s@^./@$PWD@"|sed "s@^/@@")

Disillusionist:
a little modifiation

Code:

source="./tmp/myfile"
dest=~/.Waste/$(echo $source|sed "s@^./@$PWD/@"|sed "s@^/@@")

kj6loh · 09-07-2009, 03:34 PM

Quote:

Originally Posted by Andy Alkaline

I'd like to be able to move the file into ~/.Waste/original/path

Using $PWD doesn't guarantee that. I need to have the absolute path of the file returned.

(a few minutes later)
Found it.
Bash equivalent for PHP realpath()

Unfortunately readlink is not on every bash system

edvalson · 11-02-2009, 07:55 PM

Quote:

What is your concern with using $PWD? If concerned about someone exporting variables to an incorrect value, you could always use $(pwd) to set the value of PWD.

Because if you write scripts using absolute paths that are not depending on a) where the script starts from, or b) from cd'ing somewhere inside the script, $PWD is irrelevant.

ta0kira has it right: to return the absolute path of a filename that is originally given with a relative path:

for example you are at a bash prompt in /dir1/dir2/dir3/dir4

and the file is /dir1/dir2/file1

ABSOLUTE_DIR=$(dirname $(readlink -f ../../dir2/file1))